Automobile jack



R. H. DART AUTOMOBILE JA K- July 21, 1931;

Filed July l l, 1928 I INVENTOR R ,HDapb ATTORNEY jthe built in jack'ifeature thereof, v

ERT-intent orv isAoRAMnnTo, CALIFORNIA, I

i ,7 r AUT'oMoBi E alien v 'lhi s invention relates to devices for jack ingup the wheels of Inotorf yehicles for tire changing purposes and particularly reprea; sents improvements over the apparatus shown in I my coo-pending application for patent;

Serial No.-2'51 116,"filed February 1, 1928'.

; wheelsybut which is of a) greatly simplified endless expensive" nature, which can lmorereadily be made with the requisite. strength i 1 without "undue heayiness of parts; and which j permits the use'ofan'ordinary jack in connec' tionwiththeimproved structure. The purchaseriniaytherefore, use; his pwn jack if such. is suitable and thus, save the additional expense whichi ias necessary in connectionfwith the; previous device on-acc'ount-oi' I 4 YTh'ese objects ccomplishby ineanslot such structure andrelative 'jarran'g'em'ent of part's as following pecification andclaimsfi c v t Inthe drawingssimilar characters of refe indicate 'corresponding'parts; in "the several Views.) 1 v ,1 a 4 {v p v Fig. 1 1s aside elevatlonrof my improved structure shown as, applied to a wheel and in connection with an ordinary 1' moving the tire. I I

M Fig. 2 is mi "ilar View partly in section showing the parts as cooperating to holdthe wheel raised afterfthe jack has been removed 7 so as to enablethe tire tobe drawn away-from V the wheel. Y

jack before resupporting arm, 7 Y c a c -Referring,nowmore particularly to the Fig. 3 is a fragmentary end view ofrthe characters of reference onthedrawings, the

-nun1eral- 1 denotes a cylindrical socket Ine1n- 4 her having a bushing 2 therein' to closely engage the hub-cap 3 of a-Wheel'et; Thisbushing is preferably tu'rnable in the socket meihber 7 f so that theiwheelmayturn in" said member as desired; andis removable so that difierent 59 I bushings shaped to "diiferent shapes and jill fully appear by a perusal of the k v p erably formed integral therewith. The V r bottom'of the fork-slot and thebottoinsurl-fa 1 face of the extension are curved concentricwith the pivot pin 14 of thearm'asshown'at sizes of hub-caps m be mounted therein; The underside of the; socket is forinedas seat 5-for thehead of an ordinaryjack -fif T This jack is preferably of the ratchet type which is placed as close to" the wheel as possible and ivhicli rests 0m: plate 7, supported by the ground; Since even when thejackis,

as close -to the wheel as possible]it cannot] (especially on rearwheels) be directly under the hub-cap, it is necessary for the b ushing in" the" socket to have a fairly close fit on the capso a to' prevent any possibility oit the socket tilting when'th'e jack isapplied" ruisejthe wheel; 1 7 I, 3 1 Upstanding from the plate 7; are ears 8' locateda sufiicient'distance fronifthe wheel, I I toenable'the tire 9'to be disposed between* thejack and'the earswhen said'tire'is'ree lmoved from the-iwheelL; Piv'oted between i theears is a rigid and substantial arm 10;

whoseupper end is forked as at "11 and has i a transverse orifice- 12 therethrough The/s c V forks are'adaptedto receive theouter 'enfd of a-Lrigid horizontal "extension therebe' tween, which? extension proj ects from "the outer end of the sooke'tmen berl and is pref 1 5 and the extension is provided "with fan 1 orifice 16 therethroughwhich registers'with the orifice112 when the curved surfaoes abut against each other and a stop 1-7 on the ex i I,

tension engages withthe adjacent end of the iBy means of this arrangeine t iex in'g 'or disturbing the extension in'any manf ner When the parts are thus engaged are-' I movable pin 18 is passed through theorifice;

thispin being preferably retained when not in usein a holder 19 inountedon one side of i I the arm. The bottomisurfacebetween the?!" "forks-is ofsufiicient length to providea gener 3 ous exten't of bearing'area for the extension c and it will be seen that the extension and arm 109 is; L

' then form rigid unyielding unit as as downward movement of the extension relative to the arm is concerned. The ears-8 preferably have a series of vertically spaced holes therein to receive the pin-14 so as i to enablethe device to-be readily used with wheels of different diameters and without having to jack up a small wheel to enema, siveheight before theseparable parts can be pinnedtogether as above described.

The base, plate? preferably has locating lugs-21 for the base of the jack, so as to in-' sure that when the jack engages the seat inthe socket member, the arm v1O when raised to a vertical position will properly aline both I once mounted thereon;

Inoperation the socket member is firstenv ga'ged with the hub-cap,-andthe plate 7, is

then positioned relative to the wheel so that the jackwhen supported on the plate in its predetermined location will properly engage theseat 'The wheel is then raised by nia- .ni u latioI1- of the'ja'ckthenecessary distance. so that the arm 10 when raised willreceive the e'xtension 13 between the forks aspreviously car-the extent-of raising maybe easilygau'ged 7 below, anarm pivoted onthe plate, an ex; tension projecting outwardly from the socket described. Afters few trials with anyone by the-operator, and is-,a;cilita:ted bylliheuse ofa ratchet rather than a, screw jack, since permitsaid tire to be heswhe he'raising'efthe wheel fer h m vemen o leve ia' d finite-,.a c nt The rm 10' is then raised to position, the pin 18 inserted; '7 the jackis lowered and tempora ilyre meted; the supporting units lOgand 13 then" v taking theweight. The tire is thenremoved i mm the heel and dra n u wardly ar of-the s me a sufiicient distance to permit of replacing-thejack, the load is then again taken bythe jackand thea-rm 10 is disconnected trogm the extension and swiveled away from p, said extension so ,as'to rest on the ground,

Th sobvionsly leaves a large open ng through plate, anextension projecting horizontally from the socketmelnber, and .disjengageable connection means between the upper end'oi' the arm and the outer end of the extension arranged to prevent downward movement of the latter when the wheel ralslng means 1s removed. I

,2. A wheel raising structure. comprising a socket member to engage the hub of the wheel,

a plate to rest on theground outwardly .of the wheel, an arm pivoted .011 31nd upstanding from the plate, an extension projecting horizentally "from the socket member, 7 forks formed on the upper end of the arm, said extensionpassing between the forksand restingon the bottom surface thereof, afdetachable pin through said forks and entensionand means} te-r supporting "the socket irom the ground when'the forks and extension are disengagedif n 1 V 3;. A wheel" raising structure comprising a socket meinberto en age theqhnbpf the'vvheel aplatefto rest on t l fie ground outwardly of the ;wheel,, a ackto. detach-ably rest on the plate and engageithe socket'member from the :socket' member --and,' plate for the head and base' respectively of theijack whereby when the plate is positioned relative to the socket member so that the jack parts engage the respective locating means, said arm and extension will then be positioned so as to properly cooperate withleachother when the armis swung upwardly toward the extension. I; In testimony whereof Iaifinmyksignature.

- ROBER DART;

which the i -e may hema ily hd wns i The replacement tire is then positioned and 1 the manipulation of the arm andjjaek is reheat d in therererse rd r. from th ab to mounted in place From theforegoing description it will be 1.

read-ily seen thatl have produeed'sueh ;de-' 1 v cea suhsta lyiulfil s h ebae ts git-the invention as set forth herein,

, Wh-ilesthis specification sets forth in i detail the present and preferred construction 0f the devie' still in practicesuch deviations from such detail may be resorted-to asdono t'form 'atdepantume from the spirit ofthe' inuention,

asfclefinedby the appended claims.

' *Hayingithusdescribedmy invention what I claiin as new and useful :anddesire to secure 

